Smoke, Fire & Gas Detection FAQs
Why is my mains powered smoke alarm beeping just after it has been installed?
This depends on whether the alarm is sounding intermittently or continuously.
If the alarm is sounding continuously
, check there is no smoke or fire
in your property.
If the alarm is beeping intermittently
, the lithium backup battery may have lost some of its charge in storage resulting in a low battery warning
. This will fully recharge within a few hours after the alarm is connected to the mains.
Read our smoke alarm troubleshooting guide
to find a full list of reasons and solutions.
View all smoke, fire & gas detection FAQs
(doc:536 V1.0). Our articles are reviewed regularly. However, any changes made to standards or legislation following the review date will not have been considered. Please note that we provide abridged, easy-to-understand guidance. To make detailed decisions about your fire safety provisions, you might require further advice or need to consult the full standards and legislation.